Effect of free electrons on nanoparticle charging in a negative direct current corona charger

A. Aliat*, Chuen-Tinn Tsai, C. T. Hung, Jong-Shinn Wu

*此作品的通信作者

研究成果: Conference article同行評審

摘要

A 2D numerical model is proposed to study the electric charge that will provide nanoparticles within a cylindrical corona discharge with a wire along the axis. The wire-tube electrical charger is subjected to a negative DC voltage and filled with air at atmospheric pressure at ambient temperature. A numerical application is given by considering spherical nanoparticles with a diameter of 65 nm within a wire-tube charger with a radius of 2 cm and 26cm in length. Numerical results obtained are in very good agreement with the experimental data. These results show that free electrons contribute greatly to the electrical charging efficiency mechanism of the corona charger in particular at high Ntproduct, which explains very well the large discrepancy found in earlier models which not considered electrons.

原文English
頁(從 - 到)600-605
頁數6
期刊AIP Conference Proceedings
1084
出版狀態Published - 13 4月 2009
事件26th International Symposium on Rarefied Gas Dynamics, RGD26 - Kyoto, Japan
持續時間: 20 7月 200825 7月 2008

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